Make A Serverside Hub Part 2/2 | How To

Protect your internal microservices by limiting how many requests a single user can send to the hub per minute. Tools like Nginx or middleware in your code can handle this. 4. Error Handling and "Dead Letter" Queues

When Server A receives an update, it sends a message to the Hub. The Hub then broadcasts that message only to the specific clients who need to see it, reducing unnecessary bandwidth. 3. Security: The "Gatekeeper" Role

Since the hub is the central point of contact, it is also the primary target for attacks. How To Make A Serverside Hub Part 2/2

Most hubs require instant updates (think dashboards or chat). Standard HTTP requests won't cut it because the server can't "talk" to the client unless asked.

How to Build a Server-Side Hub (Part 2/2): Logic & Execution Protect your internal microservices by limiting how many

A hub is useless if it forgets information the moment a user refreshes. You need a way to store "state"—who is online, what settings are active, and what messages are pending.

Build a mechanism where the hub attempts to re-send failed requests 3 times before giving up. Error Handling and "Dead Letter" Queues When Server

What happens when the hub tries to send data to a service that is offline?